Blind



(No Model.) 2 Sheets-Sheet; 1.

A. WULFP.

MOVABLE SLAT ROLLING BLIND.

No. 344,799. Patented June 29, 1886.

N. PUERS. Pholo-Lithmzraphun Wnmn wn, Dv C.

2 Sheets-Sheet 2.

(No-Model.)

A. WULFF.

MOVABLE SLAT ROLLING BLIND.

Patented June 29, 18 86.

.MNITFD STATES Parent Urrrcn.

ADOLPH IVULFF, OF ST. PAUL, MINNESOTA, ASSIGNOR OF ONE-THIRD TO 0. w.nnncnnnn,

OF SAME PLACE.

SPECIFICATION forming'part of Letters Patent No. 344,799, dated June 29,1886.

Application filed October 27, 1885. Serial No. 181,070. (No model.)

To all whom it may concern:

Be it known that I, ADOLPH WULFF, a citizen of the United States, and aresident of St. Paul, in the county of Ramsey and State of Minnesota,have invented certain new and useful Improvements in Movable SlatRolling Blinds, of which the following is a specification.

The object of my invention is to produce a window-blind capable of beingrolled up into a small space,while at the same time the slats of theblind shall be capable of being opened and closed independently of therolling feature of the blind.

The novelty consists in the manner of constructing and arranging thedifferent parts, whereby the desired results are produced, ashereinafter shown and described, and as illustrated in the accompanyingdrawings, in which- Figure 1 is ahorizontal section through the jamb andis a planview of an ordinary window-fra1ne, showing my improved rollingblind arranged therein. Fig. 2 is an elevation of a window from theinterior of the room with one of my improved blinds arranged therein, aportion of the frame and easing being broken away to show thcinteriorconstruction. Fig. 3 is a sectional elevation of the parts shown in Fig.2. Fig. 4 is a sectional view, similar to Fig. 3, illustrating a slightmodification in the construction and mode of applying the belting androllers. Fig. 5 is an enlarged sectional detail through the window-jamband blindstile, showing how the slat-pins work in the stile. Fig. 6 isan enlarged sectional detail through the slats, finger-plate, andhorizontal or cross stile. Fig. 7 is a front View, enlarged, of the faceof the fingerplate. Fig. 8 is a sectional detail illustrating the brakefeature of the slats.

Figs. 1, 2, 3, and 4 are on a corresponding scale, and Figs. 5, 6, 7,and 8 are on a corresponding scale.

In Figs. 2 and 3 the blind is shown broken across, so as to illustratemore fully its construction and the relative positions of the lowerparts of the blindwhen elevated and upper part when partially elevated.

The manner of constructing and operating the blind is as follows: Theblind is set between the window-jambs and kept in place by the sash-stopand blind-stop, between which stops it will slide upand down. At thepoint A, Fig. 2, at each side of the blind, will be fastened a lightsash-cord, a, which will be run between the stops to a pulley, B, Fig.2, thence down to a small wooden spool, C, Figs. 2 and 3, and coiledonce around the spool, thence the cord will be run down to a woodenwheel, D, which is fastened to the wooden cylinder G. The cord will thenbe wound twice around the Wooden wheel D, thence returned up and over apulley, E, and from thence down and fastened to a weight, F, the weight-F being provided with a channel or box, F, in the casing in which itruns. Each side of the blind will be provided with a set of the cords,pulleys, and Weights, as shown in Fig. l. The function of these weightsF is merely to take up the slack of the sash-cord a, and need not be asheavy as the blind, as the coiling of the cord twice around the drums Dserves as a brake to support the blind in equilibrium. At each end ofthe bottom stile, K, of the blind will be attached a leather strap, H,which will run down to grooves H", Figs. 2 and 3, in the ends of thecylinder G, and will be fastened onto the cylinder in the grooves. Theobject of having these leather straps is to do away with an unnecessarysection of blind, the straps H taking the place of the blind insidetheframe work of the window. Then the blind is pushed down, the leatherstraps will coil up in the grooves H and by the time the bottom stile,

K, of the blind arrives at the cylinder G the leather strap willhavefilled up the grooves H so as to make the straps flush with the cylinderG, and then the blind will keep winding upon the cylinder G until thetop of the top stile, K, of the blind sinks to the level of the top ofthe stop on the window-sill. In cases where the coiling space under thewindow-sill is very small I will add one small wooden cylinder, I, as inFig. 4., and put the large cylinder G up to a point just beneath thewindowsill, as in Fig. 4:, and then the leather straps and the blindwill run down .to and around the cylinder I and up to the cylinderG,where the leather straps and blind will roll up on the cylinder G, asbefore described. For the pulleys B and E, I will use ordinary groundaxle pulleys of proper size. The small spool O, I will make of hard woodsmoothly worked out, and put a ground axle-pivot on each end. The largecylinder G and the wheel D, I will also make of hard wood and hang thesame to a ground axle-pivot on each end.

The blind I will construct in the following manner:. The vertical stilesb, I will make of soft rubber, and the horizontal or cross stiles KK ofwood. In the vertical stiles I will have small round holes d of theshape shown in Fig. 5, so that the pins of the slats N, which haveenlarged heads (1*, can be easily pushed into the holes (1 in thestiles, but the heads (1 making it impossible for the same to slip outagain.

In the rubber stiles b b, I will inclose a number of strips of linentape, 6, to prevent the stiles from stretching. The slats N will be madethe same as an ordinary slat; but in place of putting the pins d in thecenter of the slat I will put them about two-thirds of the distancetoward the top. The object of doing this is to make the slats hang downwhen not in use. The slat-pins I will cut of the shape shown 011 thedrawings in Fig. 5. Around each of the slat-pins d I will put a smallmetal capsule, d, (see Fig. 5,) in two halves, and of the same shape andsize as the holes in the rubber stiles b and as the slat-pin. Then Iwill push the slat-pins with the capsules upon them into the small holesd in rubber stiles b, in which they will remain and be free tooscillate. The object of having the metal capsules around the slat-pinsis to make the slat work as smooth and light as possible, and to preventthe wooden slat-pins from working against the rubber stiles. It will notbe necessary to provide all the slat-pins with the enlarged heads (1",only as many being provided with the heads as will retain the stiles intheir proper positions. N of each section of the blind will be attachedto the lower wooden stile, K, by softrubber bands or wire springs, tokeep the slats in place and closed, and to keep them from rattling whenthe wind strikes them, and also to keep the slats in the right positionwhen the blind is being rolled upon the cylinder G.

The slats N, I will operate in the following manner: To each slat I willfasten a small metal eye, 9, and to each of these eyes I will attach alight metal chain, 9, and thus co nnect one slat with the other. To thetop slat of each section I will attach a small wire cable, 9 which willrun up and fasten to the top of a small wheel, h, in a finger-plate, hFigs. 6 and 7. The cable-wheel h will be mounted upon a shaft, h and onthis same shaft, outside the face of the finger-plate, a key, h issecured, so that the turning of the key will revolve the cable-wheel.The back edge of the cable-wheel h will have small rounded-off cog-teethh' cut in its periphery, as shown in Fig. 8, and a small curved steelspring, h, will The bottom slat .be fastened to the inside of thefinger-plate case, and will fit into the cogs and hold the cable-wheelwith sufficient tension to prevent its turning too easily; but at thesame time having it free to be turned by the key when sufficient forceis used. 'Ihekey 7L and Wheel h will be held together by a set-screw, h,running through the face of the'key back through the cable-wheel andinto a hub, h in the back of the finger-plate. The setscrew h holds thefinger-plate and cable-wheel together, and enables me to adjust thefingerplate if it should work too loose. By turning the key h on theface of the finger-plate the slatscan be set and held in any desiredposition.

The blindfcan be made in one or more sec 1. A rolling blind, thehorizontal stiles of which are wood or other similar suitable material,the perpendicular stiles of rubber or other similar suitable flexiblematerial, the ends of the blind slats being pivoted in said flexiblestiles, substantially as set forth.

2. In a rolling blind, the horizontal stiles K K, of wood or othersimilar suitable material, the perpendicular stiles b, of rubber orother similar suitable flexible material and having holes d at suitableintervals, and slats N, having pivot-pins with enlarged heads d adaptedto fit into said holes d, substantially as set forth.

3. In a rolling blind, the horizontal stiles K K, of wood or othersimilar suitable material, the perpendicular stiles b, of rubber orother similar suitable flexible material and having holes (1 at suitableintervals, slats N, having pivot-pins with enlarged heads d adapted tofit into said holes d, said pivot pins being above the centers of saidslats,

chains 9", connecting said slats, and means,

substantially as described, for opening and. closing said slats andholding them at any desired point.

4. In a rolling blind, the horizontal stiles Weights F over a system ofpulleys, substanand adapted to be revolved and held at any tially as setforth. required point by springs or other means, h", 5. A rolling blind,the horizontal stiles of and a cord, g, connecting said drum and slats,which are wood or other similar suitable mawhereby said slats may beopened and closed, 5 terial and the perpendicular stiles of rubbersubstantially as set forth.

or other similar suitable flexible material, the p ends of theblind-slats being pivoted in said ADOLPH WULFF' flexible stiles abovetheir centers, chains g, \Vitnesses: connecting the longer edges of saidslats, a HAVE E. HAND, IO drum or wheel, h, pivoted in the upper stileO. W. BUEGHNER.

